Question
Download Solution PDFনিচের ধারার প্রশ্ন চিহ্ন (?) এর জায়গায় কোন সংখ্যা বসবে তা চয়ন করুন।
69, 55, 26, 13, ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFপ্রদত্ত ধারা: 69, 55, 26, 13, ?
এখানে যুক্তিটি হল:
পূর্ববর্তী সংখ্যার অঙ্কগুলোকে একে অপরের সাথে গুণ করে + 1 = পরবর্তী সংখ্যা।
এখানে যে ধরণটি অনুসরণ করা হচ্ছে তা হল:
6 x 9 + 1 = 55
5 x 5 + 1 = 26
2 x 6 + 1 = 13
1 x 3 + 1 = 4
অতএব, ধারার পরবর্তী সংখ্যা হবে "4"
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